shortness vs curtness

shortness and curtness both are nouns.

Word	Noun	Adjective	Verb	Adverb
shortness	Yes	No	No	No
curtness	Yes	No	No	No

As nouns, shortness and curtness are synonyms defined as:

Other synonyms of shortness include abruptness, brusqueness, gruffness.

shortness (noun)	curtness (noun)
an abrupt discourteous manner	an abrupt discourteous manner
the property of being shorter than average stature
the property of being of short temporal extent
the property of being of short spatial extent
the property of being truncated or short
the condition of being short of something